A few months after their previous adventure in Tsukikage Village... Shiren the Wanderer and Koppa, his talking ferret partner, received a vision of a distant land and a girl in distress. It led them to the mysterious Serpentcoil Island. But they're not alone. Rumors speak of lost pirate gold hidden away within the depths of Serpentcoil Island, and a powerful monster at its highest mountain peak said to hold an exquisite treasure in its belly. Adventurers and warriors have flocked from all over the realm, eager for a chance at fortune. What is the connection between the mystery girl and the monster? What is the truth behind the secrets and treasures scattered throughout the island? A new adventure for Shiren and Koppa begins!